<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        *{margin: 0;padding: 0}
        .container{
            width: 400px;
            height: 400px;
            border: 1px solid #000;
        }

        .container > div{
            width: 100%;
            height: 100%;
        }

        .container img{
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
    
    <div class="container">
        <div><img src="https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=3602917917,1175089041&fm=27&gp=0.jpg" alt=""></div>
        <div><img src="https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=1593456909,670174312&fm=27&gp=0.jpg" alt=""></div>
        <div><img src="https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=3168162922,1075236157&fm=27&gp=0.jpg" alt=""></div>
    </div>
</body>
</html>